The expression of optic axial Angle and ray axial Angle on light wave plane can be obtained by using the curve equations of the wavefront of light wave and normal plane of light wave.
利用光波面和光波法线面的曲线方程，得出了光波面上光轴角和光线轴角的表达式。
Radiographic examination included Cobb Angle, rotation Angle of apical vertebrae, and translation of the C7 vertebra from the center sacral line on the coronal plane.
线检查包括Cobb角，椎体顶点的旋转角和C7椎体在冠状面从骶正中线的平移。
This paper provides a new construction method used when the horizontal projection of the plane Angle is equal to its space Angle.
本文提出平面角的水平投影与其空间角相等时新的作图方法。
This paper provides a new construction method used when the horizontal projection of the plane Angle is equal to its space Angle.
本文提出平面角的水平投影与其空间角相等时新的作图方法。
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